<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body >
    <form action="">
        <input type="email" onchange="alert('变化')" value="aaas" readonly>
        <input type="submit" value="提交">
    </form>
  
    <script>
//  localStorage.setItem("name","lwy")
//  console.log(localStorage.getItem('name'))
    </script>
</body>
</html>